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Due to the increasing penetration of Distributed Generation (DG) units in the power grid, traditional protection philosophies in distribution systems need to be updated. Distance protection offers an interesting choice in microgrid protection since it is independent of variations in source impedance. However, there are several constraints in applying conventional distance protection on the distribution...
The current regulatory framework demands better quality service to electric utilities, using as a measure of non scheduled power outages the SAIDI and SAIFI indexes. In this paper, a selection of characteristics from protective relays using a set of support vector machines (SVM) is proposed in order to solve the fault location problem in power distribution systems. To show the effectiveness of the...
This paper presents the application of fuzzy ARTMAP to investigate a long outstanding problem of arc type fault detection in electric systems, distribution systems, process industries and mining. With the recent increase in the use of nonlinear type loads, power semiconductor converters and possible harmonic series and parallel resonance conditions in power system and the consequent increase in the...
Widespread use of digital distance relays has increased the application of distance protection to lower voltages, including subtransmission and distribution circuits. Many systems may be impedance grounded. In this paper, we look at some unique problems that may arise on single-source, distribution systems, such as might occur at the 26-kV voltage level. A source of concern for distance relays on...
Distance elements are widely used on transmission, subtransmission, and even distribution systems. Distance-based schemes are also a very economical and simple approach to protecting these lines. The ease of use of distance elements, especially in modern digital relays, has expanded the application to shorter and shorter lines. In the past it was unlikely that a distance-based scheme would be subject...
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